<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<jsp:useBean id="username" class="paper.Username" scope="page"/>
<jsp:setProperty name="username" property="*"/>
<html>
<head>
    <title>验证反馈界面</title>
</head>
<body>
    <ul>
        <li>输入的用户名为:<jsp:getProperty name="username" property="username"/></li>
        <li>是否有效:<%=username.isValid()%></li>
        <li>提示信息:<jsp:getProperty name="username" property="tip"/></li>
    </ul>
</body>
</html>
